function xnstCOMFn = nstCOMFn(x)
xnstCOMFn = -((-606150*cos(x(1) + x(2)) + 9657960*cos(x(1) + x(2) + x(3)) -  ...
   606150*cos(x(1) + x(2) + x(3) - x(4)) - 701338095*sin(x(1)) -  ...
   6820902539*sin(x(1) + x(2)) + 401207755*sin(x(1) + x(2) + x(3)) +  ...
   25096253337*sin(x(1) + x(2) + x(3) - x(4)) +  ...
   41834171195*sin(x(1) + x(2) + x(3) - x(4) - x(5)))/ ...
  (-701338095*cos(x(1)) - 6820902539*cos(x(1) + x(2)) +  ...
   401207755*cos(x(1) + x(2) + x(3)) +  ...
   25096253337*cos(x(1) + x(2) + x(3) - x(4)) +  ...
   41834171195*cos(x(1) + x(2) + x(3) - x(4) - x(5)) +  ...
   606150*sin(x(1) + x(2)) - 9657960*sin(x(1) + x(2) + x(3)) +  ...
   606150*sin(x(1) + x(2) + x(3) - x(4)))) ...
;